Definition:

The lateral collateral ligament is a thin band of tissue running along the outside of the knee. It connects the thighbone (femur) to the fibula, which is the small bone of the lower leg that turns down the side of the knee and connects to the ankle. Like the medial collateral ligament, the lateral collateral ligament's main function is to keep the knee stable as it moves through its full arc of motion.

Symptoms:

• Knee swelling
• Locking or catching of the knee with movement
• Pain or tenderness along the outside of the knee
• Knee gives way

Causes:

• Direct blow to the inside of the knee
• Quick stopping while running
• Repetitive stress to lateral knee

Treatment:

• ROM and stretching
• Knee stabilization exercises
• Lower extremity strengthening exercises